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by aaronbrethorst 5348 days ago
The object that caused the 1908 Tunguska event is estimated to be either 40 or 60 meters in diameter[1], and it still managed to do an incredible amount of damage[2]. The object described here has a diameter of 400 meters. My understanding is that this wouldn't be anywhere near as devastating as the impact associated with the K-T extinction event, but it certainly wouldn't be very good for anyone.

[1] http://impact.arc.nasa.gov/news_detail.cfm?ID=179

[2] http://en.wikipedia.org/wiki/Tunguska_event